Responses
Yep, that is true...condoms should be a backup to other contraceptive methods, but even without that a condom with a hole in it would still be coated with spermicide
Anyway the point of this topic is that Don should have taken care not to get her pregnant and trap himself further..whether he encouraged Nami to take the pill while he used condoms each time or whatever

Don should seriously have used condoms every time with her. What the hell was he thinking? If she knew she was pregnant when he was breaking up with her he would have had no choice but to take responsibility and our ship would not have sailed.